update from manual searches

.gitignore

@@ -0,0 +1,2 @@
+.DS_Store
+.~lock.*

materials/reference_code_mappings/reference_code_mappings.csv

@@ -1,6 +1,6 @@
 reference_code,pmid,doi,reference_code_in_online_database
 75WYR/GRI,1250,10.1111/j.1432-1033.1975.tb02418.x,75WYR/GRI_223
-76BER/KLY,7996,,76BER/KLY_1009
+75WYR/GRI,7996,,76BER/KLY_1009
 76HIL/ATT,10346,10.1099/00221287-96-1-185,76HIL/ATT_1397
 76RUS/MUL,12947,10.1111/j.1432-1033.1976.tb11021.x,76RUS/MUL_237
 77SRA/FRE,18103,10.1016/0003-9861(77)90496-9,77SRA/FRE_722
@@ -845,22 +845,22 @@ reference_code,pmid,doi,reference_code_in_online_database
 35MEY/LOH,,,35MEY/LOH_1290
 35MEY/SCH,,,35MEY/SCH_805
 35MEY,,,35MEY_1289
-36EUL/ADL,,,36EUL/ADL_7
+36EUL/ADL,,10.1515/bchm2.1936.241.6.239,36EUL/ADL_7
 36LEH,,,36LEH_614
 36MEY/LOH,,,36MEY/LOH_1099
 36VEI,,,36VEI_926
-37ADL/SRE,,,37ADL/SRE_8
-37EUL/ADL2,,,37EUL/ADL2_42
-37EUL/ADL3,,,37EUL/ADL3_96
-37EUL/ADL,,,37EUL/ADL_95
+37ADL/SRE,,10.1515/bchm2.1937.249.1.24,37ADL/SRE_8
+37EUL/ADL2,,10.1515/bchm2.1937.249.1.1,37EUL/ADL2_42
+37EUL/ADL3,,10.1515/bchm2.1937.245.5-6.217,37EUL/ADL3_96
+37EUL/ADL,,10.1515/bchm2.1937.247.1-2.65,37EUL/ADL_95
 37NEG/WUL,,,37NEG/WUL_9
-38EUL/ADL,,,38EUL/ADL_273
+38EUL/ADL,,10.1515/bchm2.1938.254.2.61,38EUL/ADL_273
 38MEY/SCH,,,38MEY/SCH_1387
 41WAR/CHR,,,41WAR/CHR_1171
 42LEN/STR,,,42LEN/STR_505
 43BAN,,,43BAN_590
 43KUB/OTT,,,43KUB/OTT_97
-45OHL,,,45OHL_822
+45OHL,,10.1515/bchm2.1947.282.1-2.37,45OHL_822
 48SOR/DEG,,,48SOR/DEG_591
 49SOR/DVO,,,49SOR/DVO_615
 50PAZ,,,50PAZ_437